五年级数学上册小数乘法简便计算课件.pptx

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1、一、根据运算定律填空。8.50.89_250(0.120.04)(_)_7.91.92.11.9(_)_二、用简便方法计算下面各题。0.8520.02540990.433.68993.680.9621010.9622.42500.919980.56.050.021.310050.252.249.14.80.94.8一、根据运算定律填空。9.53.37_0.025(0.540.4)(_)_5.81.54.21.5(_)_二、用简便方法计算下面各题。0.3982.50.049990.997.8699997.860.644100010.64420.0250.4310010.55.190.22.310

2、10.0258.8344.58.25.58.2一、根据运算定律填空。2.86.62_0.25(0.03400)(_)_2.54.17.54.1(_)_二、用简便方法计算下面各题。0.7010.02549990.486.63996.630.9511010.9517.6250.68980.056.0922.11010.0254.850.042.49.67.69.6一、根据运算定律填空。2.58.22_250(0.380.4)(_)_8.33.71.73.7(_)_二、用简便方法计算下面各题。0.4210.25400990.238.9199998.910.6731010.6734.82500.171

3、020.053.3222.31042.54.5840.45.19.65.1一、根据运算定律填空。8.76.81_2.5(0.430.04)(_)_2.37.57.77.5(_)_二、用简便方法计算下面各题。0.961.2580990.317.95997.950.7521010.7520.40.0250.4910020.57.2121.11040.0258.064007.54.32.54.3一、根据运算定律填空。3.62.48_2.5(0.77400)(_)_7.43.52.63.5(_)_二、用简便方法计算下面各题。0.7682.50.41010.943.2293.220.889100010.

4、8896.8250.1610010.052.860.022.21030.0257.480.46.71.43.31.4一、根据运算定律填空。3.40.26_0.025(0.160.4)(_)_1.41.48.61.4(_)_二、用简便方法计算下面各题。0.511.250.89990.351.4791.470.5471010.5471.62500.111020.52.65201.21050.0250.110.049.68.90.3999999999999998.9一、根据运算定律填空。0.55.27_250(0.9940)(_)_9.65.20.3999999999999995.2(_)_二、用简

5、便方法计算下面各题。0.9890.50.002990.868.4199998.410.8541010.8540.80.250.9610020.051.690.22.41052.54.88405.56.74.56.7一、根据运算定律填空。1.71.11_25(0.3400)(_)_6.26.23.86.2(_)_二、用简便方法计算下面各题。0.6032.5400990.391.7491.740.694110.6945.60.0250.189990.53.121.410012.55.874007.75.72.35.7一、根据运算定律填空。3.44.72_250(0.160.04)(_)_4.89.

6、65.29.6(_)_二、用简便方法计算下面各题。0.3360.50.0210010.164.25994.250.5331010.5337.6250.52990.50.292001.110052.51.9143.61.66.41.6一、根据运算定律填空。8.15.26_0.025(0.710.04)(_)_6.46.73.66.7(_)_二、用简便方法计算下面各题。0.8490.050.00210010.652.279992.270.3621010.3620.82.50.38980.053.2522.51050.0252.444.98.35.18.3一、根据运算定律填空。0.46.56_250

7、(0.450.4)(_)_9.13.60.93.6(_)_二、用简便方法计算下面各题。0.3762.5401010.649.11999.110.37110010.3713.2250.759990.053.6621.510040.0255.6343.99.46.19.4一、根据运算定律填空。3.59.81_25(0.7340)(_)_8.64.11.44.1(_)_二、用简便方法计算下面各题。0.9740.02549990.351.56991.560.73210010.7320.80.0250.649980.51.540.22.11020.0256.210.42.81.17.21.1一、根据运算

8、定律填空。5.37.5_250(0.764)(_)_2.61.47.41.4(_)_二、用简便方法计算下面各题。0.1781.25800990.867.4399997.430.5521010.5527.62500.951010.55.88201.51010.0253.840.46.41.63.61.6一、根据运算定律填空。2.51.11_25(0.584)(_)_1.28.88.88.8(_)_二、用简便方法计算下面各题。0.29612.581010.583.469993.460.19110010.1912.82.50.581010.51.272001.11040.0254.090.40.79

9、.69.39.6一、根据运算定律填空。1.59.72_250(0.860.04)(_)_7.91.82.11.8(_)_二、用简便方法计算下面各题。0.3871.2580010010.934.699994.690.53910010.5390.8250.85990.057.680.22.510052.53.724005.33.84.73.8一、根据运算定律填空。2.51.77_25(0.484)(_)_4.83.65.23.6(_)_二、用简便方法计算下面各题。0.9910.12581010.254.4399994.430.94810010.9484.42500.6210020.058.8421

10、.410050.0251.09403.73.76.33.7一、根据运算定律填空。9.93.53_0.25(0.364)(_)_8.49.91.69.9(_)_二、用简便方法计算下面各题。0.0480.02540990.232.839992.830.352110.35262.50.4710010.59.830.22.310040.0254.4949.57.60.57.6一、根据运算定律填空。2.60.02_250(0.15400)(_)_2.63.97.43.9(_)_二、用简便方法计算下面各题。0.281500.029990.996.34996.340.537110.5373.60.250.6

11、21020.56.250.21.210050.254.020.472.932.9一、根据运算定律填空。2.51.08_0.025(0.240.4)(_)_8.12.71.92.7(_)_二、用简便方法计算下面各题。0.8060.50.0029990.695.1995.190.4691010.4695.20.250.9810010.050.050.021.410010.253.410.048.38.71.78.7一、根据运算定律填空。5.57.62_2.5(0.7840)(_)_1.38.78.78.7(_)_二、用简便方法计算下面各题。0.5620.0250.41010.275.4899995

12、.480.394110.3940.42.50.67990.058.980.22.410010.256.6407.24.52.84.5一、根据运算定律填空。1.74.52_25(0.884)(_)_7.87.22.27.2(_)_二、用简便方法计算下面各题。0.9682.5400990.129.3899999.380.938100010.93820.0250.569990.54.832001.51030.0255.650.0442.862.8一、根据运算定律填空。4.82.3_0.25(0.040.04)(_)_2.51.67.51.6(_)_二、用简便方法计算下面各题。0.4040.1250.

13、089990.821.229991.220.322110.3227.60.250.39990.59.792002.21030.257.01409.36.60.6999999999999996.6一、根据运算定律填空。3.50.79_25(0.110.4)(_)_3.85.26.25.2(_)_二、用简便方法计算下面各题。0.8120.2540010010.989.679999.670.752110.7520.80.0250.939990.54.2722.110040.254.650.45.93.34.13.3一、根据运算定律填空。8.62.5_250(0.6940)(_)_5.96.44.16.4(_)_二、用简便方法计算下面各题。0.27500.0210010.143.4193.410.24610010.246